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Looking for an open-source Thesaurus dataset which contains as many English root words and synonyms as possible. Any solutions and associated links to data would be appreciated.

codehearted
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Anusha
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    Folks on StackOverflow have a tendency to shut questions down as not constructive far too soon. This is the second time in two days that I've found a question useful, and the answer useful, yet someone shut it down. – James Madison Aug 26 '14 at 13:20
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    I googled for exactly this question. The answers about wordnet sent me straight where I needed to go. Doesn't make sense the question is closed. – Samuel Danielson Dec 15 '15 at 02:08
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    When someone closes a question because it's on Google, it would be very useful if the search terms were provided. Sometimes it's not laziness, but not knowing the best terms to use. – ASalazar Mar 14 '16 at 21:01
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    This question has clear value, and needs to be reopened. – Hurricane Hamilton Apr 02 '16 at 19:37
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    I agree, this should be re-opened, even as it stands it has more useful info than the linked question which is nearly identical and which has not been closed as non-constructive. – codehearted Aug 13 '16 at 09:18
  • @Kev how can this question be improved? – Kenshin Nov 10 '18 at 13:50
  • @Kenshin - it's out of my hands now, I'm no longer a diamond moderator. You could bring this up on Meta. – Kev Nov 10 '18 at 23:57

4 Answers4

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Thanks to Grady Ward for releasing http://icon.shef.ac.uk/Moby/ in the public domain ;)

Buglouse
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https://wordnet.princeton.edu/download

Also, OpenOffice.org has a thesaurus and is open source. You should be able to use their thesaurus database at least in another open source project.

Teetrinker
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  • Thank you for the reply but it would be nice if you send across the link for OpenOffice Thesaurus downloads. – Anusha Apr 11 '11 at 17:51
  • Have a look here: http://extensions.services.openoffice.org/en/dictionaries But with a little help from Google you can find it yourself. Don't forget to check the license conditions if you intend to use it in a public product. – Teetrinker Apr 11 '11 at 17:58
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    For anyone else that comes across this, you can download the OpenOffice extension (e.g any of the English dictionaries), rename the `.oxt` file to `.zip`, and look at `th_en_US_v2.dat` or similar. That file contains a list of words and their synonyms. – Ali Dec 27 '17 at 18:58
  • The link is broken. – Flimm May 25 '18 at 10:06
  • Thanks, @Flimm. I replaced the link, though I am not fully aware anymore what the previously linked FAQ entry was stating exactly. – Teetrinker May 30 '18 at 11:16
  • "equestrian" as a synonym for "traveling"? "Panama" as a synonym for "sailor"? This dataset is completely useless. – BlueRaja - Danny Pflughoeft Dec 05 '22 at 10:32
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Check WordNet: http://wordnet.princeton.edu/

sukru
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    http://wordnetcode.princeton.edu/standoff-files/core-wordnet.txt is what you are looking for... – cevaris Oct 05 '15 at 21:55
  • the version in http://wordnetcode.princeton.edu/standoff-files/core-wordnet.txt is incomplete. for example it cannot match cat with feline - something that wordnet itself can do – Nir O. Aug 13 '23 at 09:10
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Take a look at this forum post at digitalpoint.

Take a look at previous question here Need a thesaurus database

Note: A simple Google search reveals a lot of links.

Community
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    Thank you for the reply but none of them are helping out .I am still not able to find a thesaurus database that has all the words and its synonyms :( – Anusha Apr 11 '11 at 17:52